-- Stellar Resources (ASX:SRZ) reported improvement in metallurgical performance on ore-sorted Queen Hill material at its Heemskirk project in Tasmania, showing a pathway to tin recovery exceeding 70%, according to a Wednesday filing with the Australian bourse.
Test work supports production of a final saleable tin concentrate grading in the range of 42% to 49%, consistent with standard smelter requirements for processing, the filing said.
Additionally, test work on the Severn tin deposit demonstrated "strong" metallurgical performance, showing a pathway to tin recovery of about 75% and producing concentrates grading 45% to 50%, per the filing.